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None Re: Energy loss of ions 

Keywords: Energy loss of ions
Forum: Particles
Re: None Energy loss of ions (Take Saito)
Date: 01 Sep, 2004
From: michel maire <michel maire>

 I ran examples/extended/electromagnetic/TestEm3 with the following macro:
 # $Id: dedx.mac,v 1.1 2004/03/17 12:32:57 maire Exp $
 #
 # Macro file for "TestEm3.cc" 
 # (can be run in batch, without graphic)
 #
 # To control dE/dx calculation:
 #  1 layer; minimum ionizing particle
 #
 /control/verbose 2
 /run/verbose 2
 #
 /testem/det/setNbOfLayers 1
 /testem/det/setNbOfAbsor 1
 /testem/det/setAbsor 0 Water 1 cm
 /testem/det/setSizeYZ 1 cm
 #
 /testem/phys/addPhysics  standard
 /testem/phys/setCuts 1 km
 #
 /run/initialize
 #
 /process/inactivate msc
 /process/eLoss/fluct false
 #
 /testem/gun/setDefault
 /tracking/verbose 1
 #
 /gun/particle proton
 /gun/energy 2 GeV
 /run/beamOn 1
 #
 /gun/particle ion
 /gun/ion 2 4 2
 /gun/energy 8 GeV
 /run/beamOn 1
 #
 /gun/particle ion
 /gun/ion 3 6 3
 /gun/energy 12 GeV
 /run/beamOn 1
 #
 /gun/particle ion
 /gun/ion 6 12 6
 /gun/energy 24 GeV
 /run/beamOn 1

 Below is part of the output :

 *************************************************************
  Geant4 version $Name: geant4-06-02-ref-01 $   (27-July-2004)
                       Copyright : Geant4 Collaboration
                        Reference : NIM A 506 (2003), 250-303
                             WWW : http://cern.ch/geant4
 *************************************************************

 /run/verbose 2
 #
 /testem/det/setNbOfLayers 1
 /testem/det/setNbOfAbsor 1
 /testem/det/setAbsor 0 Water 1 cm
 /testem/det/setSizeYZ 1 cm
 #
 /testem/phys/addPhysics  standard
 /testem/phys/setCuts 1 km
 #
 /run/initialize
 userDetector->Construct() start.

 -------------------------------------------------------------
  ---> The calorimeter is 1 layers of:
  	Water          :      1 cm
 -------------------------------------------------------------

 Material: Galactic            density:  0.000 mg/cm3  temperature:   2.73 K  pressure:   0.00 atm  RadLength: 204322175.595 pc
   --->  Element: Galactic    Z =  1.0   N =   1.0   A =   1.01 g/mole  fractionMass: 100.00 %  Abundance 100.00 %

 Material: Water        H_2O   density:  1.000 g/cm3  temperature: 273.15 K  pressure:   1.00 atm  RadLength:  36.084 cm
   --->  Element: HydrogenH   Z =  1.0   N =   1.0   A =   1.01 g/mole  fractionMass:  11.19 %  Abundance  66.67 %
   --->  Element: OxygenO   Z =  8.0   N =  16.0   A =  16.00 g/mole  fractionMass:  88.81 %  Abundance  33.33 %

 -------------------------------------------------------------

 ========= Table of registered couples ==============================

 Index : 0     used in the geometry : Yes     recalculation needed : No 
 Material : Galactic
 Range cuts        :  gamma 1 km    e- 1 km    e+ 1 km
 Energy thresholds :  gamma 990 eV    e- 990 eV    e+ 990 eV
 Region(s) which use this couple : 
    DefaultRegionForTheWorld

 Index : 1     used in the geometry : Yes     recalculation needed : No 
 Material : Water
 Range cuts        :  gamma 1 km    e- 1 km    e+ 1 km
 Energy thresholds :  gamma 2.88022e+295 J    e- 2.88022e+295 J    e+ 2.88022e+295 J
 Region(s) which use this couple : 
    DefaultRegionForTheWorld

 ====================================================================

 ### Run 0 start.

 ---> Begin Of Event: 0

 *********************************************************************************************************
 * G4Track Information:   Particle = proton,   Track ID = 1,   Parent ID = 0
 *********************************************************************************************************

 Step#      X         Y         Z        KineE    dEStep   StepLeng  TrakLeng    Volume     Process
     0     -6 mm     0 fm     0 fm     2 GeV     0 eV     0 fm     0 fm   World    initStep
     1     -5 mm     0 fm     0 fm     2 GeV     0 eV     1 mm     1 mm   World          Transportation
     2      5 mm     0 fm     0 fm     2 GeV  2.02 MeV     1 cm   1.1 cm   Water          Transportation
     3      6 mm     0 fm     0 fm     2 GeV     0 eV     1 mm   1.2 cm   OutOfWorld  Transportation
 Run terminated.
 Run Summary
   Number of events processed : 1
   User=0s Real=0s Sys=0s

 ------------------------------------------------------------
 material             Total Edep   sqrt(E0(GeV))*rmsE/Emean     total tracklen 

 Water        : 2.0213 MeV +- 0.01672 eV  1.17e-06 +- 1.17e-06 %         1 cm +-    0 fm

 ------------------------------------------------------------

 #
 /gun/particle ion
 /gun/ion 2 4 2
 /gun/energy 8 GeV
 /run/beamOn 1

 ### Run 1 start.

 ---> Begin Of Event: 0

 *********************************************************************************************************
 * G4Track Information:   Particle = alpha,   Track ID = 1,   Parent ID = 0
 *********************************************************************************************************

 Step#      X         Y         Z        KineE    dEStep   StepLeng  TrakLeng    Volume     Process
     0     -6 mm     0 fm     0 fm     8 GeV     0 eV     0 fm     0 fm   World    initStep
     1     -5 mm     0 fm     0 fm     8 GeV     0 eV     1 mm     1 mm   World          Transportation
     2      5 mm     0 fm     0 fm  7.99 GeV  8.08 MeV     1 cm   1.1 cm   Water          Transportation
     3      6 mm     0 fm     0 fm  7.99 GeV     0 eV     1 mm   1.2 cm   OutOfWorld  Transportation
 Run terminated.
 Run Summary
   Number of events processed : 1
   User=0s Real=0s Sys=0s

 ------------------------------------------------------------
 material             Total Edep   sqrt(E0(GeV))*rmsE/Emean     total tracklen 

 Water        : 8.0838 MeV +- 0.08059 eV  2.82e-06 +- 2.82e-06 %         1 cm +-    0 fm

 ------------------------------------------------------------

 #
 /gun/particle ion
 /gun/ion 3 6 3
 G4ProcessTable::Insert : arguments are 0 pointer 
 G4ProcessTable::Insert : arguments are 0 pointer 
 G4ProcessTable::Insert : arguments are 0 pointer 
 G4ProcessTable::Insert : arguments are 0 pointer 
 /gun/energy 12 GeV
 /run/beamOn 1

 ### Run 2 start.

 ---> Begin Of Event: 0

 *********************************************************************************************************
 * G4Track Information:   Particle = Li6[0.0],   Track ID = 1,   Parent ID = 0
 *********************************************************************************************************

 Step#      X         Y         Z        KineE    dEStep   StepLeng  TrakLeng    Volume     Process
     0     -6 mm     0 fm     0 fm    12 GeV     0 eV     0 fm     0 fm   World    initStep
     1     -5 mm     0 fm     0 fm    12 GeV     0 eV     1 mm     1 mm   World          Transportation
     2      5 mm     0 fm     0 fm    12 GeV  18.2 MeV     1 cm   1.1 cm   Water          Transportation
     3      6 mm     0 fm     0 fm    12 GeV     0 eV     1 mm   1.2 cm   OutOfWorld  Transportation
 Run terminated.
 Run Summary
   Number of events processed : 1
   User=0s Real=0s Sys=0s

 ------------------------------------------------------------
 material             Total Edep   sqrt(E0(GeV))*rmsE/Emean     total tracklen 

 Water        : 18.189 MeV +- 0.04886 eV 9.305e-07 +- 9.305e-07 %         1 cm +-    0 fm

 ------------------------------------------------------------

 #
 /gun/particle ion
 /gun/ion 6 12 6
 G4ProcessTable::Insert : arguments are 0 pointer 
 G4ProcessTable::Insert : arguments are 0 pointer 
 G4ProcessTable::Insert : arguments are 0 pointer 
 G4ProcessTable::Insert : arguments are 0 pointer 
 /gun/energy 24 GeV
 /run/beamOn 1

 ### Run 3 start.

 ---> Begin Of Event: 0

 *********************************************************************************************************
 * G4Track Information:   Particle = C12[0.0],   Track ID = 1,   Parent ID = 0
 *********************************************************************************************************

 Step#      X         Y         Z        KineE    dEStep   StepLeng  TrakLeng    Volume     Process
     0     -6 mm     0 fm     0 fm    24 GeV     0 eV     0 fm     0 fm   World    initStep
     1     -5 mm     0 fm     0 fm    24 GeV     0 eV     1 mm     1 mm   World          Transportation
     2      5 mm     0 fm     0 fm  23.9 GeV  72.8 MeV     1 cm   1.1 cm   Water          Transportation
     3      6 mm     0 fm     0 fm  23.9 GeV     0 eV     1 mm   1.2 cm   OutOfWorld  Transportation
 Run terminated.
 Run Summary
   Number of events processed : 1
   User=0s Real=0.01s Sys=0.01s

 ------------------------------------------------------------
 material             Total Edep   sqrt(E0(GeV))*rmsE/Emean     total tracklen 

 Water        : 72.753 MeV +- 0.5348 eV 3.601e-06 +- 3.601e-06 %         1 cm +-    0 fm

 ------------------------------------------------------------

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